2-1/2 Inch Laser Welded Dry/Wet Diamond Core Drill Bit with 9 Inch Tube Length is of professional quality for dry masonry with laser welded individual segments to hold up under extreme heat and cutting pressure. Barrel vents increase air flow to dissipate heat and cool the core bit. Specially formulated professional quality turbo segments provide fast cutting and long life. NOT RECOMMENDED ON CONCRETE and REINFORCED CONCRETE. This core bit is used for general purpose dry drilling on a variety of soft brick and concrete block using either a Handheld Core Drill or a Core Drill Rig.
